/* Layout container */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Main content area */
.main-content {
  flex: 1;
  margin-left: 260px;
  padding: 2rem;
  transition: margin-left 0.3s ease;
}

/* Main content without sidebar */
.main-content.no-sidebar {
  margin-left: 0;
}

/* Page headers */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

/* Header actions */
.header-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

@media (max-width: 768px) {
  .header-actions {
    flex-wrap: wrap;
  }
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-secondary);
}

.empty-state h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.empty-state p {
  margin-bottom: 1rem;
}

/* Responsive design */
@media (max-width: 768px) {
  .main-content {
    margin-left: 0;
    padding: 1rem;
    padding-top: 4rem;
  }

  /* Mobile header layout */
  .mobile-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1002;
    height: 4rem;
  }

  .mobile-header .page-title {
    font-size: 1.5rem;
    /* Space for hamburger button */
    margin-left: 4rem;
    /* Space before button */
    margin-right: 1rem;
    flex: 1;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  /* Hide the regular page header on mobile when mobile header is used */
  .page-header {
    display: none;
  }

  .page-header.desktop-only {
    display: none;
  }

  .ideas-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

/* Hide mobile header on desktop */
@media (min-width: 769px) {
  .mobile-header {
    display: none;
  }
}

/* Desktop only elements */
@media (max-width: 768px) {
  .desktop-only {
    display: none !important;
  }
}